Most ink jet printers use CMYK color, which creates a printout that appears to have thousands of colors.

Which of the following questions would be open-ended and allow a technician to discover the problem?

A) Did the problem occur today for the first time? B) What time did the problem occur first? C) Could you show me the problem? D) How often does the problem occur?

Which of the following is true about algebraic expressions?

a) parentheses are needed in all algebraic expressions b) infix expressions do not require precedence rules c) postfix expressions do not require association rules d) fully parenthesized expressions are difficult to recognize and evaluate